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57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
"""The extension-identifier grammar in `mcp.shared.extension`, shared by server and client."""
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from typing import Any
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import pytest
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import mcp.server.extension
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import mcp.shared.extension
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from mcp.shared.extension import validate_extension_identifier
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def test_server_extension_module_reexports_shared_validator() -> None:
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"""SDK-defined: `mcp.server.extension` re-exports the shared validator as the same function object."""
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assert mcp.server.extension.validate_extension_identifier is mcp.shared.extension.validate_extension_identifier
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@pytest.mark.parametrize(
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"identifier",
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[
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"io.modelcontextprotocol/ui",
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"com.example/my_ext",
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"com.x-y.z2/n.a-b_c",
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"example/x",
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"a/b",
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"com.example/9start",
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],
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)
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def test_grammar_conformant_extension_identifiers_are_accepted(identifier: str) -> None:
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"""Spec `_meta` key grammar: conformant `vendor-prefix/name` identifiers are accepted."""
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validate_extension_identifier(identifier, owner="T")
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@pytest.mark.parametrize(
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"identifier",
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[
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"noprefix",
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"-foo/bar",
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".leading/x",
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"a..b/x",
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"foo-/x",
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"9foo/x",
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"foo/-bar",
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"foo/bar-",
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"foo/",
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"/bar",
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"foo/ba r",
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"io.modelcontextprotocol/ui\n",
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"",
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None,
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42,
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],
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)
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def test_malformed_extension_identifiers_are_rejected(identifier: Any) -> None:
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"""Spec `_meta` key grammar: malformed prefixes, malformed names, and non-strings are rejected."""
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with pytest.raises(TypeError):
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validate_extension_identifier(identifier, owner="T")
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